 /*
  * $Header: /cvshome/build/org.osgi.service.url/src/org/osgi/service/url/AbstractURLStreamHandlerService.java,v 1.8 2006/06/16 16:31:31 hargrave Exp $
  *
  * Copyright (c) OSGi Alliance (2002, 2006). All Rights Reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package org.osgi.service.url;

 import java.net.*;

 /**
  * Abstract implementation of the <code>URLStreamHandlerService</code> interface.
  * All the methods simply invoke the corresponding methods on
  * <code>java.net.URLStreamHandler</code> except for <code>parseURL</code> and
  * <code>setURL</code>, which use the <code>URLStreamHandlerSetter</code>
  * parameter. Subclasses of this abstract class should not need to override the
  * <code>setURL</code> and <code>parseURL(URLStreamHandlerSetter,...)</code>
  * methods.
  *
  * @version $Revision: 1.8 $
  */
 public abstract class AbstractURLStreamHandlerService extends URLStreamHandler
         implements URLStreamHandlerService {
     /**
      * @see "java.net.URLStreamHandler.openConnection"
      */
     public abstract URLConnection openConnection(URL u)
             throws java.io.IOException ;

     /**
      * The <code>URLStreamHandlerSetter</code> object passed to the parseURL
      * method.
      */
     protected URLStreamHandlerSetter realHandler;

     /**
      * Parse a URL using the <code>URLStreamHandlerSetter</code> object. This
      * method sets the <code>realHandler</code> field with the specified
      * <code>URLStreamHandlerSetter</code> object and then calls
      * <code>parseURL(URL,String,int,int)</code>.
      *
      * @param realHandler The object on which the <code>setURL</code> method must
      * be invoked for the specified URL.
      * @see "java.net.URLStreamHandler.parseURL"
      */
     public void parseURL(URLStreamHandlerSetter realHandler, URL u,
             String spec, int start, int limit) {
         this.realHandler = realHandler;
         parseURL(u, spec, start, limit);
     }

     /**
      * This method calls <code>super.toExternalForm</code>.
      *
      * @see "java.net.URLStreamHandler.toExternalForm"
      */
     public String toExternalForm(URL u) {
         return super.toExternalForm(u);
     }

     /**
      * This method calls <code>super.equals(URL,URL)</code>.
      *
      * @see "java.net.URLStreamHandler.equals(URL,URL)"
      */
     public boolean equals(URL u1, URL u2) {
         return super.equals(u1, u2);
     }

     /**
      * This method calls <code>super.getDefaultPort</code>.
      *
      * @see "java.net.URLStreamHandler.getDefaultPort"
      */
     public int getDefaultPort() {
         return super.getDefaultPort();
     }

     /**
      * This method calls <code>super.getHostAddress</code>.
      *
      * @see "java.net.URLStreamHandler.getHostAddress"
      */
     public InetAddress getHostAddress(URL u) {
         return super.getHostAddress(u);
     }

     /**
      * This method calls <code>super.hashCode(URL)</code>.
      *
      * @see "java.net.URLStreamHandler.hashCode(URL)"
      */
     public int hashCode(URL u) {
         return super.hashCode(u);
     }

     /**
      * This method calls <code>super.hostsEqual</code>.
      *
      * @see "java.net.URLStreamHandler.hostsEqual"
      */
     public boolean hostsEqual(URL u1, URL u2) {
         return super.hostsEqual(u1, u2);
     }

     /**
      * This method calls <code>super.sameFile</code>.
      *
      * @see "java.net.URLStreamHandler.sameFile"
      */
     public boolean sameFile(URL u1, URL u2) {
         return super.sameFile(u1, u2);
     }

     /**
      * This method calls
      * <code>realHandler.setURL(URL,String,String,int,String,String)</code>.
      *
      * @see "java.net.URLStreamHandler.setURL(URL,String,String,int,String,String)"
      * @deprecated This method is only for compatibility with handlers written
      * for JDK 1.1.
      */
     protected void setURL(URL u, String proto, String host, int port,
             String file, String ref) {
         realHandler.setURL(u, proto, host, port, file, ref);
     }

     /**
      * This method calls
      * <code>realHandler.setURL(URL,String,String,int,String,String,String,String)</code>.
      *
      * @see "java.net.URLStreamHandler.setURL(URL,String,String,int,String,String,String,String)"
      */
     protected void setURL(URL u, String proto, String host, int port,
             String auth, String user, String path, String query, String ref) {
         realHandler.setURL(u, proto, host, port, auth, user, path, query, ref);
     }
 }

